package com.example.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.script.DefaultRedisScript;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.scripting.support.ResourceScriptSource;

/**
 * @Author 游家纨绔
 * @Description TODO
 * @Create 2023-09-06 17:30
 */
@Configuration
public class RedisConfig {

	// 将Lua脚本注入bean
	@Bean
	public DefaultRedisScript<Long> initRedisScript() {
		DefaultRedisScript<Long> redisScript = new DefaultRedisScript<>();
		redisScript.setResultType(Long.class);
		redisScript.setScriptSource(new ResourceScriptSource(new ClassPathResource("Stock.lua")));
		return redisScript;
	}

	// 设置redis序列化，使用官方提供的模板会导致存入数据乱码，需手动配置使用
	@Bean
	public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
		RedisTemplate<String, Object> template = new RedisTemplate<>();
		template.setConnectionFactory(redisConnectionFactory);

		// 配置序列化方式
		Jackson2JsonRedisSerializer<?> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);

		ObjectMapper obm = new ObjectMapper();
		// 指定要序列化的域，field,get和set,以及修饰符范围，ANY是都有包括private和public
		obm.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		// 指定序列化输入的类型，类必须是非final修饰的，final修饰的类，比如String,Integer等会跑出异常
		obm.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL);

		jackson2JsonRedisSerializer.setObjectMapper(obm);

		StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
		// key 采用String的序列化方式
		template.setKeySerializer(stringRedisSerializer);
		// hash
		template.setHashKeySerializer(stringRedisSerializer);
		// value
		template.setValueSerializer(jackson2JsonRedisSerializer);
		// Redis初始化
		template.afterPropertiesSet();
		return template;
	}

}
